hot rolled seamless tube and hot rolled seamless tube manufacturing process for use on cargo vehicle suspension axles

摘要

manufacture of high mechanical strength hot-rolled seamless tube for use on cargo vehicle suspension axles and high mechanical strength hot-rolled seamless tube for use on cargo vehicle suspension axles the chemical composition developed to ensure High mechanical strength with good toughness and good weldability in seamless steel pipes, in hot rolled condition and standardized in line or continuous furnace, provides lower cost of the production process (previously only possible in tempered and tempering condition), besides positively affect lead time. the seamless tube manufacturing process from the production of charcoal pig iron, steel making in ld converter, secondary furnace metallurgy, vacuum degassing, continuous casting with electromagnetic stirring, hot rolling in mandrel continuous rolling mill ( continuous mandrel mill or plug mill, with continuous or in-line standardization around continuous, ensures the metallurgical quality and final properties necessary to meet the mechanical stresses to which the shafts are exposed.